L322 Power being cut randomly

Michael551 · Mar 20, 2019

Morning All,

I am looking for some advice.
Randomly our L322 (2005 3.0 Diesel) restricts the power down to around 20mph, generally turning it on and off fix's it.
It went in for a gearbox oil service a few months ago, and there wasn't any obvious faults on the diagnostics, today it happened 6 times whilst driving 15 mins, the car just starts shutting itself down and the throttle doesn't seem to make any difference to the revs, nothing comes on the dash or warning noises etc.

Many thanks

Ratae · Mar 20, 2019

May not have been anything showing when the service was done but it doesn't mean that this latest issue hasn't stored a code so I'd suggest getting a diagnostic & see if anything comes up.

Michael551 · Mar 20, 2019

Hi Ratae,

I have a complete print out of all the fault codes present at the time and previously stored.
Non of which point to a sensible fault.

many thanks

Henry_b · Mar 20, 2019

At that time?

Any now?

Michael551 · Mar 20, 2019

Hi Henry,

It was doing this before it went into the garage, thats why i asked for the diagnostics.
I thought it may give me a simple answer!

Many thanks

gold rover · Mar 20, 2019

L322 and sensible fault rarely go together. You need diagnostics for now. Just for laughs you could compare it to the previous list. That is, in the event, that you and they are using the same diagnostic system.

td4van · Mar 20, 2019

What are the faults listed?

There maybe a clue in them as to what’s happening with your car

Mark Piercy · Mar 20, 2019

Fuel pump/s over heating and seizing up temporarily?
You could do with have a look at any live data with a diagnostic reader really. Take a ride with the diag and do a recording while driving. You can then look at the playback if the problem shows its face...it may take a few runs to collect the info needed to bust it wide open!

Focus on fuel rail pressure.
Engine coolant temperature.
Fuel temperature.
Even throttle position in case it drops out in a worn spot on the potentiometer....

Michael551 · Mar 21, 2019

Morning,

Thank you for all the info!
Is there a diagnostics system people would advise?

Many thanks

Michael551 · Mar 21, 2019

Also, I have seen a lot about EGR issues or split inter cooler hoses, could these be a possibility?

Thanks

Grrrrrr · Mar 21, 2019

Michael551 said:
Morning,

Thank you for all the info!
Is there a diagnostics system people would advise?

Many thanks

Depends. A simple ODB reader can probably read your engine codes but not much else. After that you can see if Storey Wilson covers your car with his AllComms software or is it 4can for yours? Cannot remember. After that it gets expensive.

Datatek · Mar 21, 2019

Grrrrrr said:
Depends. A simple ODB reader can probably read your engine codes but not much else. After that you can see if Storey Wilson covers your car with his AllComms software or is it 4can for yours? Cannot remember. After that it gets expensive.

As far as I'm aware, a simple OBD reader will not read fault on the diesel.

L322 Power being cut randomly

Michael551

New Member

Ratae

Well-Known Member

Michael551

New Member

Henry_b

Think outside, no box required.

Michael551

New Member

gold rover

Well-Known Member

td4van

Well-Known Member

Mark Piercy

Well fumbled member....

Michael551

New Member

Michael551

New Member

Grrrrrr

Technician, Bodgit & Scarper Ltd

Datatek

Well-Known Member

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